Possible Interaction: Marijuana and Methamphetamine

“Moreover, 92.7% of them combined cannabis use with methamphe-tamine.”

“Moreover, a great percentage of adults (53.4%) reported using methamphetamine while also under the influence of marijuana.”

“ResultsDaily use of cannabis alone significantly exceeded daily usage rates for methamphetamines , alcohol, and cannabis used alongside other substances.”

“Men in the marijuana PSU class were less likely to have positive attitudes towards methamphetamine than participants in the other three classes.”

“… methamphetamine … marijuana use displayed unique associations; methamphetamine use was associated with an increased abundance of Porphyromonas and Granulicatella organisms and a decreased abundance of Ruminococcus, Collinsella, … increased abundance of Ruminococcus, Clostridium cluster IV, Solobacterium, and Fusobacterium organisms and a decreased abundance of Acidaminococcus, Prevotella, Dialister, Anaerostipes, and Dorea organisms.”

“Older participants exhibited significantly higher concordance than younger participants in reports of marijuana and methamphetamine use.”

“Although methamphetamine and cannabis are commonly abused together, few studies have investigated the differential neurocognitive consequences of methamphetamine abuse with or without cannabis.”

“Physicians treating those patients can benefit by knowing whether their patients using marijuana are at higher risk for using other illicit drugs such as cocaine and/or methamphetamine.”

“In bivariate analyses, users of MA had significantly greater odds of reporting other substance use, including alcohol, powder or crack cocaine, marijuana , and methylenedioxymethamphetamine (MDMA, “ecstasy”).”

“Neurotoxic and possible neuroprotective mechanisms of these substances are discussed as well as possible interactions between cannabis and methamphetamine.”